$ git clone -n https://src.fedoraproject.org/rpms/perl-MouseX-Foreign.git /var/lib/mock/f45-build-25220-610/root/chroot_tmpdir/scmroot/perl-MouseX-Foreign
Cloning into '/var/lib/mock/f45-build-25220-610/root/chroot_tmpdir/scmroot/perl-MouseX-Foreign'...
$ git fetch origin 63ce79c65d350e86f29784dfbe82a6fb3bedf7f3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-MouseX-Foreign
 * [new ref]         63ce79c65d350e86f29784dfbe82a6fb3bedf7f3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 63ce79c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild